1st. although you got the explanation right. I use 8ml per gallon =1 unless otherwise specified. less in veg and a little more in flower.

I use well water 167ppm and add 1/4tsp superthrive per gallon to my well water. After rooting, or when placing seedlings in dwc. I use ro water, and liquid Karma ph 5.8. That way I acclimate the young plants to all the elements of nutrients...Within a week roots are crazy and proceed to
1-1-1=8ml-8ml-8ml of G-M-B of any companies 3-part.
We use General Hydroponics, which is what Advanced Nutrients copied for their 3-part.
So that way, you can buy GH without everybody being sure about what you grow.
make sure you have a way to keep ph consistantly around 5.8.
That, in it self is probably the most important aspect of steering clear of problems in the 1st place.